MSP430G2230-EP Datasheet, PDF (8/40 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430G2230-EP
SLAS863 – AUGUST 2012
Memory Organization
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Table 8. Memory Organization
Memory
Main: interrupt vector
Main: code memory
Information memory
RAM
Peripherals
Size
Flash
Flash
Size
Flash
Size
16-bit
8-bit
8-bit SFR
MSP430G2230
2KB Flash
0xFFFF-0xFFC0
0xFFFF-0xF800
256 Byte
0x10FF - 0x1000
128 Byte
0x027F - 0x0200
0x01FF - 0x0100
0x00FF - 0x0010
0x000F - 0x0000
Flash Memory
The flash memory can be programmed by the Spy-Bi-Wire or JTAG port, or in-system by the CPU. The CPU can
perform single-byte and single-word writes to the flash memory. Features of the flash memory include:
• Flash memory has n segments of main memory and four segments of information memory (A to D) of
64 bytes each. Each segment in main memory is 512 bytes in size.
• Segments 0 to n may be erased in one step, or each segment may be individually erased.
• Segments A to D can be erased individually, or as a group with segments 0 to n. Segments A to D are also
called information memory.
• Segment A contains calibration data. After reset segment A is protected against programming and erasing. It
can be unlocked but care should be taken not to erase this segment if the device-specific calibration data is
required.
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